<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link href="https://cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet">
    <style>
        body{
            background-color: #159ED8;

        }
        form{
            margin-top: 200px;
        }
        .form-control{
            border: none;
            border-radius: 0;
        }
        .btn-default{
            border: none;
            border-radius: 0;
            width: 360px;
        }
    </style>
</head>
<body>

<div class="container">
    <div class="row">
        <div class="col-md-4"></div>
        <div class="col-md-4">
            <form action="/admin/login" method="post" class="form">
                <div class="form-group">
                    <input type="text" name="username" class="form-control"  placeholder="username">
                </div>
                <div class="form-group">
                    <input type="text" name="password"  class="form-control" placeholder="password">
                </div>
                <input type="submit" class="btn btn-default" value="登录">
            </form>
        </div>
    </div>
</div>

</body>
</html>